My name is***** fault suggests a fault with the heating element or heat sensor.
The code relates to the water exceeding the maximum temp, this would really require a engineer call out since you need to strip the back of the appliance down and test the NTC (sensor), and check the heating element to rule out a PCB problem.
I see this is an integrated appliance, as such it would probably worth repairing.
If you provide me with your postcode I can recommend a local engineer who can attend and verify if its the NTC, Heater or PCB at fault and give you a cost of repair.
I just wanted to follow up to see if you needed any further assistance?